In students’eyes．a good teacher should have many good virtues but heor she should be know

问题补充：

In students’eyes．a good teacher should have many good virtues，but ，he

or she should be knowledgeable．

A. above all

B. after all

C. first of all

D. in all

答案：

(答案→)A. above all

B. after all

C. first of all

D. in all

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